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    <title>Document</title>
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    <h1>JS</h1><hr>

    <script>
        // alert('222'); //阻塞性
        // JS
        document.write('asdasd');
        document.write('asdasd');
        document.write('asdasd');
        document.write('asdasd');
        document.write('asdasd');
        // 冒号介意加上
    </script>
    
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